SAAM Investment Newsletter | Weekly Deep-Dive Edition Data as of market close, February 28, 2026
If you only checked the S&P 500’s year-to-date return of roughly 0.7% through the end of February, you’d think nothing happened. You’d be wrong.
Beneath that flat headline number, one of the most dramatic sector rotations in recent memory is playing out. Sector dispersion — the gap between the best and worst performing sectors — has reached the 99th percentile of historical norms, meaning the spread between winners and losers is wider than it’s been in virtually any two-month stretch on record. The “old economy” sectors of Energy, Industrials, and Consumer Staples are posting double-digit YTD gains, while Information Technology, the market’s dominant sector by weight at 33.4% of the index, has declined roughly 3–4% over the same period.
The story of February 2026 isn’t about the market going nowhere. It’s about the market going everywhere at once — and the mega-cap technology names that have driven index returns for years are, for now, anchoring the headline number lower while the rest of the market quietly surges.
For readers at every level, the takeaway is this: what you own within the S&P 500 matters far more right now than whether you own the S&P 500 itself.
The Fed is on pause, but divided. The Federal Reserve held the federal funds rate steady at 3.50%–3.75% at its January 2026 meeting, following three consecutive 25-basis-point cuts that closed out 2025. Two governors — Stephen Miran and Christopher Waller — dissented, voting for an additional cut. The January FOMC minutes revealed genuine disagreement among policymakers: several members believe further cuts are appropriate if inflation continues to decline, while others flagged the possibility that rate increases could be necessary if inflation stays above target. Adding to the uncertainty, Fed Chair Jerome Powell’s term expires in May 2026, and markets are beginning to price in leadership transition risk.
The 10-year Treasury yield settled near 4.04% at the end of February, trending modestly lower in recent months and broadly moving in sync with the Fed funds rate. Inflation, as measured by the CPI (Consumer Price Index — the most widely watched gauge of consumer price changes), sits at 2.39%, still above the Fed’s 2% target but notably cooler than the peaks of recent years.
Earnings season delivered again. Q4 2025 marked the fifth consecutive quarter of double-digit earnings growth for the S&P 500, with a blended growth rate of 13.2%. About 76% of companies beat EPS (earnings per share — the portion of a company’s profit allocated to each outstanding share of stock) estimates, roughly in line with the 10-year average. Information Technology, Industrials, and Communication Services led the growth, while Consumer Discretionary and Energy were the only sectors reporting year-over-year earnings declines.
But the forward outlook is more cautious. Analysts cut Q1 2026 EPS estimates by 1.5% over the first two months of the year (from $71.57 to $70.50), with the sharpest reductions in Health Care (–13.2%) and Energy (–12.3%). Notably, Information Technology was one of only two sectors that saw upward estimate revisions for Q1, with estimates rising 5.2%. For full-year 2026, analysts project earnings growth of approximately 14%.
The forward P/E ratio (price-to-earnings — the stock price divided by expected future earnings, a common valuation measure) for the S&P 500 stands at 21.5, above the 5-year average of 20.0 and the 10-year average of 18.8 — elevated, but slightly lower than the 22.0 recorded at the end of Q4.
Here’s how the GICS sectors are shaping up YTD through late February, ranked by approximate total return. Note that exact returns vary slightly depending on the index provider and measurement date:
SectorYTD DirectionKey DriversEnergyStrong outperformer (~22%+ YTD)Oil price spike (~12%), AI power demand, capital disciplineIndustrialsStrong outperformer (~16%+ YTD)Data center buildout, infrastructure spendingConsumer StaplesOutperformer (~13% YTD)Flight to value, defensive rotationUtilitiesOutperformer (double-digit YTD)AI-driven electricity demand, rate-cut tailwindsMaterialsOutperformer (double-digit YTD)Physical buildout trade, commodity exposureHealth CareOutperformerDefensive rotation, mean reversion from 2025 underperformanceReal EstateModest outperformerSenior housing demand, data center REITsCommunication ServicesRoughly flatMixed — AI tailwinds for hyperscalers vs. media consolidation dragFinancialsSlight underperformerNarrowing net interest margins, loan growth uncertaintyConsumer DiscretionaryUnderperformerConsumer stress (especially lower-income), TSLA and AMZN dragInformation TechnologyWeakest sector (~–4% YTD)AI capex deceleration, “Inference Era” skepticism, valuation reset
Sources: Morningstar, FactSet, S&P Dow Jones Indices. Returns are approximate and vary by index methodology.
The dispersion is striking. The gap between the best-performing sector (Energy) and the worst (Information Technology) is roughly 25+ percentage points in just two months. That kind of spread is historically rare and signals a meaningful regime shift in market leadership.
SPDR Energy Select Sector ETF (XLE): ~+12.6% in February alone
The Energy sector has been the standout story of early 2026, and February accelerated the trend. The rally is driven by a compelling dual narrative.
On the traditional hydrocarbon side, oil prices spiked roughly 12% year-to-date through late February, supported by geopolitical tensions and supply discipline from major producers. But the more transformative driver is the insatiable demand for electricity coming from AI-driven data centers. By late 2025, it became clear that the binding constraint on AI growth was no longer chip supply — it was the physical electrical grid. Data centers are now projected to consume nearly 2% of total global electricity, and grid interconnection delays in the U.S. have stretched to five-to-seven-year wait times for some projects.
Stock callouts:
Exxon Mobil (XOM) has surged roughly 26% YTD, responsible for about one-third of the entire Energy sector’s return. The company’s record-low extraction costs in its Guyana operations and a $20 billion share buyback program have supported the rally, and Morningstar analysts recently raised their fair value estimate to $142 per share.
Chevron (CVX) has delivered strong double-digit returns alongside Exxon, benefiting from capital discipline and shareholder return programs even as oil prices remain below their 2024 averages.
GE Vernova (GEV), classified within Industrials but deeply tied to the energy infrastructure theme, has soared roughly 34% YTD. Its gas turbine backlog has reached a record $150 billion, with inventory reportedly sold out through 2028. Management expects to approach 100 gigawatts under contract in 2026.
What could change the picture: A sustained drop in oil prices, a deceleration in data center construction approvals, or a surprise dovish pivot from the Fed (which could rotate capital back toward growth stocks) would all challenge this trade. The sector’s Q1 2026 earnings estimates have been cut 12.3%, reflecting lower year-over-year oil price comparisons — a reminder that strong stock performance doesn’t always align with near-term fundamentals.
SPDR Technology Select Sector ETF (XLK): ~–6.3% in February alone
This is the most consequential sector story of early 2026 — not because Technology has collapsed, but because as the single largest sector in the S&P 500 at 33.4% of index weight, its underperformance has effectively masked double-digit gains elsewhere.
February’s decline was driven by what analysts are calling the “Inference Era” transition. The market spent 2024–2025 rewarding the buildout of AI infrastructure: the chips, the servers, the hyperscaler capital expenditures. That buildout hasn’t stopped, but the pace of capex growth from major hyperscalers has decelerated from a staggering 75% growth rate to a more modest 25%. The market is now demanding proof that AI spending is translating into real revenue — and for many software names, that proof has been mixed.
The semiconductor sub-sector experienced what some commentators described as a “digestive pullback” in the third week of February. This doesn’t mean the AI investment thesis is broken — Information Technology was actually one of only two sectors with rising Q1 2026 earnings estimates (+5.2%) — but it does mean the market is being far more selective about which tech companies deserve premium valuations.
Stock callouts:
Nvidia (NVDA), Microsoft (MSFT), and Meta Platforms (META) have all lagged the broader market significantly in early 2026. The “Magnificent Seven” as a group has effectively stagnated while the equal-weight index has outperformed.
Broadcom (AVGO) has been cited as a potential bright spot in the custom silicon market and a bellwether for the health of the broader AI hardware ecosystem heading into the second half of the year.
What could change the picture: A clear inflection in AI-driven revenue growth — particularly from enterprise software deployments — could reignite the sector. Technically, the sector’s relative underperformance also creates the conditions for a sharp mean-reversion rally if any positive catalyst materializes. Conversely, continued deceleration in hyperscaler capex or disappointing Q1 guidance could extend the drawdown.
SPDR Consumer Discretionary Select Sector ETF (XLY): Among the weakest performers YTD
Consumer Discretionary is a textbook case of how index concentration can distort sector-level signals. Amazon (AMZN) and Tesla (TSLA) together represent approximately 40% of XLY’s total weight — meaning roughly half the ETF’s daily movement is driven by just two stocks.
Tesla (TSLA) has fallen approximately 11% YTD after reporting a Q4 2025 revenue decline of 3% year-over-year. Automotive revenue — Tesla’s core business — dropped 11%, only partially offset by strength in energy generation and services. CEO Elon Musk’s January 2026 decision to end production of the Model S and Model X in favor of focusing on the Optimus humanoid robot program added to investor uncertainty.
Amazon (AMZN) has also struggled to gain traction, with its performance dragging the cap-weighted XLY lower.
Here’s the nuance: many individual consumer discretionary stocks are actually performing reasonably well. Retailers like Walmart (WMT) and Costco (COST) — classified under Consumer Staples but thematically linked to consumer spending patterns — have surged as consumers prioritize value in an environment of elevated prices and a “less-dovish” interest rate stance. The equal-weight version of the Consumer Discretionary sector has significantly outperformed the cap-weighted XLY, suggesting the underlying consumer is more resilient than the headline number implies.
What could change the picture: A stabilization in Tesla’s narrative (particularly around the Model Y refresh cycle and Optimus commercialization timeline) would significantly lift the sector given its outsized weight. More broadly, any deterioration in the labor market (unemployment currently at 4.4%) or consumer confidence would be a genuine headwind. Schwab’s research notes “pockets of consumer stress” among lower-income households, a trend worth monitoring closely.
SPDR Health Care Select Sector ETF (XLV): Outperforming in 2026 after lagging in 2025
Health Care has been one of the more interesting rotation stories of early 2026. After underperforming for much of 2025, the sector appears to be experiencing a classic mean reversion — a tendency for assets that have underperformed to eventually catch up, and vice versa.
The fundamental backdrop is supportive. Q4 2025 revenue growth for the sector came in at 10.4% year-over-year, ranking third among all eleven sectors. The sector trades at a forward P/E of approximately 19.9, below the S&P 500’s 21.5, offering relative value in a market where most outperforming sectors are becoming expensive.
Health Care also benefits from its traditional defensive characteristics — these are companies whose products and services people need regardless of economic conditions. In an environment where investors are questioning the durability of the AI-driven growth trade and seeking stability, the sector’s reliable cash flows and aging-population tailwinds become more attractive.
Key dynamics to watch:
Schwab rates Health Care as “Outperform” for the next six to twelve months. However, Q1 2026 earnings estimates have been cut more sharply here than any other sector (–13.2%), suggesting analysts see near-term headwinds even as the longer-term story remains intact. Patent cliffs for major pharmaceutical companies and regulatory uncertainty remain structural risks.
Eli Lilly (LLY) continues to dominate the sector narrative with its weight-loss and diabetes franchise. UnitedHealth Group (UNH) remains the sector heavyweight and a key indicator of managed care trends.
The weight of evidence suggests this rotation has room to continue, but the setup is not without risks.
Supporting factors for continued rotation: The “physical buildout” trade (energy infrastructure, industrials, power generation) has fundamental momentum — data center electricity demand isn’t slowing down, and grid capacity constraints don’t resolve quickly. Earnings estimate trends also favor the broadening: full-year 2026 EPS estimates for Q2 through Q4 are actually rising, even as Q1 estimates fall.
Risk factors to monitor: Multiple cycle analysis models suggest elevated volatility probabilities in Q2/Q3 2026. Fed Chair Powell’s May term expiration introduces a layer of policy uncertainty. And the VIX (CBOE Volatility Index — a measure of expected near-term stock market volatility, often called the “fear gauge”), which sat near multi-year lows around 16 in early February, has drifted higher toward 21, reflecting growing unease.
The critical question: Can the “real economy” rally sustain itself if mega-cap tech continues to drag, or does the heaviest sector in the index eventually pull the broader market lower? The answer likely depends on whether Q1 earnings season (beginning in April) confirms the broadening narrative or reveals cracks beneath the surface.
Conviction level: Moderate. The rotation trade has been well-established and is supported by fundamental data, but much of the easy money has been made. Morningstar notes that none of the six stocks driving the rotation are considered undervalued at current levels. Disciplined risk management remains essential.
This newsletter is for educational and informational purposes only and does not constitute investment advice, a recommendation, or a solicitation to buy or sell any securities. The author is not a registered investment advisor, broker-dealer, or financial planner. All analysis represents the author’s interpretation of publicly available data and may contain errors. Past performance does not guarantee future results. Markets involve substantial risk, including the possible loss of principal. Always do your own research and consult with a qualified financial professional before making any investment decisions.
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